Driving mechanism.



W. B` PEDELTY.

DRIVING MECHANISM.

APPLICATION FILED JULY Il, 19|?.

Patented Mau'. 5, 1918.

1T STATE@ WALTER .'B. PEDELTY, OF MASON CITY, IOWA, ASSIGNOR TO THEAULTMAN AND TAYLOR MACHINERY COMPANY, OF MANSFELD, OHIO.

DRIVING MECHMIISTH.

Specification of Letters Patent.

Patented Mar. 5, 1918.

Application led July l1, 1917. Serial No. 179.885.

To all i/:tom 'it may concern.:

Be it known that l, lVAixri-:n B. Pnnmfrr, a citizen of the UnitedStates. residing at Mason City, in the county of (ferro Gordo and Stateof Iowa, have invented certain new and useful llnprovemcnts in Drivinghflcchanism; and I do hereby declare the following to he a full. clear.and exact. description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to a driving mechanism or transmission gearingfor tractors and motor cars; and it consists of a train of toothedwheels and other co-acting parts specially adapted to afford a straightline drive, and to enable the tractor to be propclled fornf'ardly andrearwardly, hereinafter fully described and claimed.

ln the drawings, Figure 1 is a plan view of a transmission gearconstructed accord ing to this invention. Fig. 2 is an end view of thetransmission gear, partially in section.

A, suitable supporting frame or casing 2 is provided, and 3 is the maindriving shaft or motor shaft which is journaled in a bear- :ing t on themain frame. The shaft 3 is preferably arranged longitudinally of ltheframe 2, and the motor, which is of any approved construction, ispreferably are ranged at the front end portion of the frame.

A crossshaft 5 is jonrnaled in bearings 6 on the frame to the rear ofthe main driving sha-ft 2, and a beveled toothed pinion 7 is secured onthe shaft 2, and gears into a beveled toothed wheel 8 secured on thecrossshaft A driving wheel or belt pulley 9 is also secured on one endportion of the shaft 5. so that the motor may he used as a stationaryengine when desirable.

A (.'ountershaft 10 is journaled in hearings 12 on the frame, and isarranged arallel to and to the rear of the cross-shaft 5, and is formedof two sections arranged aXially in line with each other. A differentialgear of any approved construction is provided, and is connected to themiddle part of the countershaft 10 in any approved Way, and thisdifferential gear is inclosed in a casing 14, and is not herein morefull)|` described and illustrated as it is of any standard make. Atoothed Wheel 15 is secured on the casing 14 of the differential gear soas to revolve the sections of the counter shaft 10.

A toothed pinion 16 is splined on the crossshaft 5, and is arranged sothat it can be slid longitudinally on it, into and ont of gear with thetoothed wheel 15. .A collar 17 having a circumferential groove 18 isprovided on one end of the pinion 1G, and a reversing arm, rod or leverof any approved construction is provided for engaging with the groove 18and sliding the pinion 16 and holding it in any desired location on itsshaft.

A reversing shaft 20 is journaled in bearings 21 on the frame, and atoothed pinion is secured on the shaft 20, and is arranged constantly ingear with the toothed wheel 15 on the casing of the differential gear.

A small toothed Wheel 24 is also secured on the reversing shaft 20, anda space of greater Width than the pinion 16 is left between the Wheel24: and the pinion 22. The reversing shaft 20 is arranged parallel tothe cross shaft 5, and the parts are proportioned so that the pinion 16can loe slid on its shaft 5 out of gear with the Wheel 15 and into gearwith the small Wheel 211.

1When the pinion 16 is in gear with the Wheel 15 the tractor is drivenforwardly, and when in gear with the Wheel 2/1 the trac tor is drivenrearwardly.

The pinion 22 is made smaller in diameter' than the pinion 16, so thatthe tractor is driven more slowly in a rearward direction than in aforward direction, with the same speed of motor shaft.

The sections of the shaft 10 have similar toothed pinions 26, commonlyCalled hull pinions, secured on their outer end portions. Each pinion 26is arranged constantly in gear with a toothed master Wheel 27 whichdrives one of the traction Wheels of the tractor. The traction Wheels ofthe tractor are of any approved make, and each is preferably arrangedconcentric with its master wheel 27 to which it is connected in anyapproved Way, the traction Wheels and their connections being alike oneach ,side of the machine. The shaft bearings 6, 12 and 21 are allrigidly secured to the frame 2 so that the shafts Which revolve in themare all held constantly at the same distances apart from cach other. Thedriving shaft 3 and the toothed Wheel 15 are arranged at the middle partof the frame and substantially midway between its two longitudinal sidebars, S0

that the driving is effected upon the longi 110 tudinal center line ofthe tractor., rlhe shaft 3 is arranged on the other side of the shaft 5from the shaft l0, and these shafts are all arranged in the sainehorizontal plane.

What l claim is:

l. In a driving mechanism for o. tractor, a supporting frame, thetoothed main Wheel of a differential gear journaled in. the traine, u4cio'ss-shzift journaled in the freine, e reversing shaft also journeledin the frame, said shafts being constantly held parallel to the axis ofthe main Wheel and at the same distance from it and from each other bythe said frame, t toothed pinion secured on the reversing shaft andrunning constantly in gear with the said main Wheel, a toothed rerersingWheel secured on the reversing shaft, a toothed pinion revolving withand slideble on the cross-shaft and adapted to loe slid into and out ofgear with the said main Wheel and with the said reversing Wheel, ebeveled toothed Wheel secured on the eroseshaft and arranged on theother side of the slidahle pinion from the reversing Wheele n maindriving shaft journaled longitudinally :intente in the traine .findarranged in the piene oi revolution of the seid mein Wheel, and et bev#eled toothed pinion secured on the main driving shaft and gearing intothe said bev' eled toothed Wheel.

2. ln a driving mechanism for a tractor, :i siighoporting freine, thetoothed main Wheel of a diilerentia-l gear journeled in the frame, e,cross-shaft jonrmled in the trame, e beveled toothed Wheel secured onthe crosst shelt.y :i rnnin driving shaft journeled longitudinally inthe trarne and arranged in the plane o'l revolution Vot the seid meinwheel, n beveled toothed pinion secured on the mein driving :shaft andgearing into the seid bev- WALTER B, PEDELTY.

